package com.br.util;
import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

public class ConexaoHibernateFilter implements Filter{
	private SessionFactory sf;

	@Override
	public void destroy() {
		
		
	}

	@Override
	public void doFilter(ServletRequest servletFilter, ServletResponse servletResponse,
			FilterChain chain) throws IOException, ServletException {
		try {
            this.sf.getCurrentSession().beginTransaction();
            chain.doFilter(servletFilter, servletResponse);
            this.sf.getCurrentSession().getTransaction().commit();
            this.sf.getCurrentSession().close();
    } catch (Throwable ex) {
           
            try {
                    if(this.sf.getCurrentSession().getTransaction().isActive()){
                            this.sf.getCurrentSession().getTransaction().rollback();
                    }
            } catch (Throwable t) {
                    t.printStackTrace();
            }
           
            throw new ServletException();
    }

		
	}

	@Override
	public void init(FilterConfig conf) throws ServletException {
		this.sf = conexaoHibernateUtil.getSession();

		
	}

}
